Search results

  1. S

    1979 25 hp Engine running issues

    Hey guys. You all helped me a few weeks ago with some seal replacement work and what I thought was a knocking noise! I got everything back together and it ran great at first but has now developed this running issue. See the video. I’m not sure if it’s a fuel issue, or an electrical issue...
  2. S

    1979 25hp lower crank seal help

    I’m replacing the lower crank shaft seal in my eninrude 25904r 25 hp. The new seal came in today and it’s a little different than the original. I just want to make sure I’m installing it right before I put in the adhesive! In the instructions it mentions a Teflon ring (I assume the orange ring)...
  3. S

    1979 25 hp Evinrude knocking noise

    Hey guys, I have a 1979 25hp Evinrude model 25904r. Recently I’ve noticed kind of a knocking noise when I’m running it. I don’t recall if it’s a noise it’s always had and didnt notice until now or if it’s slowly developing! I’ll attach a few videos! The compression on both cylinders was 120...
  4. S

    25 hp evinrude rough idling issues

    OK so you guys helped me out on here quite a bit a while back. I certainly appreciate that. I have a 1979 25 hp Evinrude model 25904r. It’s a 2 stroke pull start. Previously I was having an issue with the engine running rough at idle but then smoothing out after it warmed up. I thought it was a...
  5. S

    1979 25 hp runs rough at idle, please help

    Hey guys, thanks in advance for any help you can give me! I have a 1979 25 hp model 25904r evinrude, pull start. This past summer it was running flawlessly. Now that it’s gotten colder (I use it for duck hunting) im having some issues. When I cold crank it it starts pretty easilly, but...
  6. S

    1979 25 hp evinrude mounting height question!

    I have 1979 25 hp evinrude model 25904r that's in excellent working order an I'd like to keep it that way. My question is that currently when mounted on my 1975 Lowe line Jon boat the anti ventilation plate is about 2 inches below the bottom of the boat. I'm under the impression that the anti...
  7. S

    1979 25 hp evinrude 25904r manual needed

    I'm curious if anyone knows where I can obtain a PDF copy of a 1979 evinrude 25 hp 25904r outboard motor. The only thing I'm finding is hard copies for 60 to 70 dollars. I think those prices are a bit ridiculous. Thanks for any help you all may have!
Top